Hollow Bimetallic Zinc Cobalt Phosphosulfides for Efficient Overall Water Splitting

Zuozhong Liang; Zhiyuan Yang; Jingshuang Dang; Jing Qi; Haitao Yuan; Jinpeng Gao; Wei Zhang; Haoquan Zheng; Rui Cao

doi:10.1002/chem.201804492

Hollow Bimetallic Zinc Cobalt Phosphosulfides for Efficient Overall Water Splitting

Chemistry. 2019 Jan 7;25(2):621-626. doi: 10.1002/chem.201804492. Epub 2018 Dec 11.

Authors

Zuozhong Liang¹, Zhiyuan Yang¹, Jingshuang Dang¹, Jing Qi¹, Haitao Yuan¹, Jinpeng Gao², Wei Zhang¹, Haoquan Zheng¹, Rui Cao^{1

3}

Affiliations

¹ Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710 119, P. R. China.
² Department of Chemistry, Purdue University, West Lafayette, Indiana, 47907, USA.
³ Department of Chemistry, Renmin University of China, Beijing, 100872, P. R. China.

PMID: 30320475
DOI: 10.1002/chem.201804492

Abstract

Bimetallic sulfides with earth-abundant transition-metal elements are proposed to enhance the electrocatalytic activities. Further replacement of S atom by less electronegative P atom improves the electrocatalytic performance of OER and HER. Herein, hollow bimetallic zinc cobalt phosphosulfides (Zn_0.3 Co_2.7 S₃ P) are synthesized by a two-step process. The optimal catalyst of Zn_0.3 Co_2.7 S₃ P with particle size of 50 nm displays an excellent electroactivity and long-term durability toward efficient overall water splitting process in alkaline medium. The excellent bifunctional electrocatalytic performance may be ascribed to the synergistic effect of hollow structure, anion substitution tuning and unique size control.

Keywords: ZnCo phosphosulfides; hollow structures; substitution tuning; water splitting; zeolitic imidazolate framework (ZIF).

Abstract

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